Описание: While lactic acid-producing fermentation has long been used to improve the storability, palatability, and nutritive value of perishable foods, only recently have we begun to understand just why it works. Since the publication of the third edition of Lactic Acid Bacteria: Microbiological and Functional Aspects, substantial progress has been made in a number of areas of research. Completely updated, the Fourth Edition covers all the basic and applied aspects of lactic acid bacteria and bifidobacteria, from the gastrointestinal tract to the supermarket shelf.
Topics discussed in the new edition include:Revised taxonomy due to improved insights in genetics and new molecular biological techniquesNew discoveries related to the mechanisms of lactic acid bacterial metabolism and functionAn improved mechanistic understanding of probiotic functioningApplications in food and feed preparationHealth properties of lactic acid bacteriaThe regulatory framework related to safety and efficacy Maintaining the accessible style that made previous editions so popular, this book is ideal as an introduction to the field and as a handbook for microbiologists, food scientists, nutritionists, clinicians, and regulatory experts.
Описание: Written with the in-plant food safety/quality assurance professional in mind, this reference offers proven approaches and suggestions for finding sources of microbiological contamination of industrially produced products.
Описание: This book intends to provide information about detection and health effects due to bacteria, fungi and viruses in indoor environments. The book will cover also information about preventive and protective measures to avoid health-hazardous. Case studies will be also addressed to enrich the book with the expertise of each invited author. The book also intends to fill a gap regarding information about all biologic agents, since most of the books available are dedicated to only one type of microorganisms. For various different biologic agents and metabolites this book will compile information about indoors presence, detection methods, exposure assessment and health effects. Several problems regarding the exposure of biologic agents will be presented through case studies, and also the implementation of preventive and protective measures to avoid/minimize exposure. Besides, all the book will focus on occupational health and/or public health point of view.
Описание: This book intends to provide information about detection and health effects due to bacteria, fungi and viruses in indoor environments. The book also intends to fill a gap regarding information about all biologic agents, since most of the books available are dedicated to only one type of microorganisms.
Описание: This book provides a broad account of various applied aspects of microbiology for quality and safety evaluations in food, water, soil, environment and pharmaceutical sciences.
Автор: Joshua B. Gurtler; Michael P. Doyle; Jeffrey L. Ko Название: The Microbiological Safety of Low Water Activity Foods and Spices ISBN: 1493952714 ISBN-13(EAN): 9781493952717 Издательство: Springer Рейтинг: Цена: 12196.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
A. Introduction and Overview.- 1. The Microbiological Safety of Spices and Low Water Activity Foods: Correcting Historic Misassumptions.-2. Challenges in the Control of Foodborne Pathogens in Low-Water Activity Foods and Spices.- B. Pathogen Persistence and Control in Low aw Foods and Processing Plants.- 3. Adaptation of Pathogenic Microorganisms to Dry Conditions.- 4. Transcriptomic Responses of Salmonella Species to Desiccation and Low-Moisture Environments: Extending Our Knowledge of How Bacteria Cope with Low-Moisture Stress.- 5. Processing Plant Investigations: Practical Approaches to Determining Sources of Persistent Bacterial Strains in the Industrial Food Processing Environment.- 6. Dry Cleaning, Wet Cleaning and Alternatives to Processing Plant Hygiene and Sanitation.- C. Low aw Food Commodities of Interest.- 7. Spices.- 8. Dried Dairy-Based Products.- 9. Low Water Activity Meat Products.- 10. Dried, Ready-to-Eat Cereal Products.- 11. Powdered Infant Formula.- 12. Nuts and Nut Pastes.- 13. Flour and Meal.- 14. Chocolate and Confectionary.- 15. Salty Snack Foods.- 16. Pet Foods.- 17. Dried Teas and Herbs.- D. Product Testing.- 18. Regulatory Testing Guidelines and Recommendations.- 19. Methodological and Sampling Challenges to Testing Spices and Low aw Foods for the Presence of Foodborne Pathogens.- E. Low aw Food Decontamination.- 20. Irradiation, Microwave and Alternative Energy-Based Treatments for Low Water Activity.- 21. Heat and Steam Treatments.- F. Research Needs.- 22. Research Gaps and Needs Pertaining to Microbial Pathogens in Spices and Low aw Foods.
Автор: Joshua B. Gurtler; Michael P. Doyle; Jeffrey L. Ko Название: The Microbiological Safety of Low Water Activity Foods and Spices ISBN: 1493920618 ISBN-13(EAN): 9781493920617 Издательство: Springer Рейтинг: Цена: 14635.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Low water activity (aw) and dried foods such as dried dairy and meat products, grain-based and dried ready-to-eat cereal products, powdered infant formula, peanut and nut pastes, as well as flours and meals have increasingly been associated with product recalls and foodborne outbreaks due to contamination by pathogens such as Salmonella spp. and enterohemorrhagic E. coli. In particular, recent foodborne outbreaks and product recalls related to Salmonella-contaminated spices have raised the level of public health concern for spices as agents of foodborne illnesses. Presently, most spices are grown outside the U.S., mainly in 8 countries: India, Indonesia, China, Brazil, Peru, Madagascar, Mexico and Vietnam. Many of these countries are under-developed and spices are harvested and stored with little heed to sanitation. The FDA has regulatory oversight of spices in the United States; however, the agency’s control is largely limited to enforcing regulatory compliance through sampling and testing only after imported foodstuffs have crossed the U.S. border. Unfortunately, statistical sampling plans are inefficient tools for ensuring total food safety. As a result, the development and use of decontamination treatments is key. This book provides an understanding of the microbial challenges to the safety of low aw foods, and a historic backdrop to the paradigm shift now highlighting low aw foods as vehicles for foodborne pathogens. Up-to-date facts and figures of foodborne illness outbreaks and product recalls are included. Special attention is given to the uncanny ability of Salmonella to persist under dry conditions in food processing plants and foods. A section is dedicated specifically to processing plant investigations, providing practical approaches to determining sources of persistent bacterial strains in the industrial food processing environment. Readers are guided through dry cleaning, wet cleaning and alternatives to processing plant hygiene and sanitation. Separate chapters are devoted to low aw food commodities of interest including spices, dried dairy-based products, low aw meat products, dried ready-to-eat cereal products, powdered infant formula, nuts and nut pastes, flours and meals, chocolate and confectionary, dried teas and herbs, and pet foods. The book provides regulatory testing guidelines and recommendations as well as guidance through methodological and sampling challenges to testing spices and low aw foods for the presence of foodborne pathogens. Chapters also address decontamination processes for low aw foods, including heat, steam, irradiation, microwave, and alternative energy-based treatments.
Автор: Jarvis, Basil Название: Statistical Aspects of the Microbiological Examination of Foods ISBN: 0128039736 ISBN-13(EAN): 9780128039731 Издательство: Elsevier Science Рейтинг: Цена: 10610.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Statistical Aspects of the Microbiological Examination of Foods, Third Edition, updates some important statistical procedures following intensive collaborative work by many experts in microbiology and statistics, and corrects typographic and other errors present in the previous edition. Following a brief introduction to the subject, basic statistical concepts and procedures are described including both theoretical and actual frequency distributions that are associated with the occurrence of microorganisms in foods. This leads into a discussion of the methods for examination of foods and the sources of statistical and practical errors associated with the methods. Such errors are important in understanding the principles of measurement uncertainty as applied to microbiological data and the approaches to determination of uncertainty.
The ways in which the concept of statistical process control developed many years ago to improve commercial manufacturing processes can be applied to microbiological examination in the laboratory. This is important in ensuring that laboratory results reflect, as precisely as possible, the microbiological status of manufactured products through the concept and practice of laboratory accreditation and proficiency testing. The use of properly validated standard methods of testing and the verification of 'in house' methods against internationally validated methods is of increasing importance in ensuring that laboratory results are meaningful in relation to development of and compliance with established microbiological criteria for foods.
The final chapter of the book reviews the uses of such criteria in relation to the development of and compliance with food safety objectives. Throughout the book the theoretical concepts are illustrated in worked examples using real data obtained in the examination of foods and in research studies concerned with food safety.
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